iOS Engineer

Nahuel Borromeo

I ship production iOS apps that millions of people rely on — 4+ years crafting reliable, well-architected experiences in Swift, UIKit and SwiftUI.

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Portrait of Nahuel Borromeo

Experience

NTT Data · iOS Engineer

Aug 2024 — Present · Remote

Investments module of a large-scale banking application

  • Shipped Phase 1 and Phase 2 of the investments module end to end — both live in production today.
  • Helped drive double-digit percentage growth in customers opening investment products, turning the module into a new revenue line for the bank.
  • Own features across Domain / Data / Presentation layers (Clean Architecture, MVVM) in Swift, UIKit and SwiftUI, keeping the codebase testable as it scales.
  • Partner daily with backend and QA teams in an agile environment.

Bachatours (USA) · Freelance Developer

Nov 2023 — Feb 2024 · Remote

Commercial website for a US tourism startup

  • Built the company's commercial website, improving brand visibility and online presence.
  • Worked directly with stakeholders to translate business requirements into technical solutions.

Baufest · Software Developer (iOS)

Mar 2022 — Aug 2023 · Remote

MODO — the digital wallet for BBVA Argentina

  • Implemented and launched TransferPull, a money-transfer feature serving MODO's millions of users.
  • Built two amortization engines for business-lending products.
  • Kept legacy systems stable through high-pressure release cycles, ensuring backward compatibility with every ship.

Yobel SCM · Software Developer

Aug 2021 — Mar 2022 · Remote

  • Maintained and enhanced enterprise-level systems.
  • Implemented new UI components and standardized UI designs across modules.

Skills

iOS

  • Swift
  • SwiftUI
  • UIKit

Architecture

  • Clean Architecture
  • MVVM
  • MVC
  • Modularization

Tools

  • Swift Package Manager
  • Git
  • GitHub
  • Xcode

Web

  • JavaScript
  • React
  • HTML
  • CSS

About

I'm a systems engineer from Lima who found his craft in iOS. I've spent my career on high-stakes products — apps where a bug costs real money — and that shaped how I work: architecture first, tests always, and care for the details users never see. That discipline travels to any product, in any industry.

Right now I'm deepening my iOS fundamentals in public through my Become a better iOS engineer series.

Latest posts

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Become a better iOS engineer: why I'm learning in public

I'm working through a personal iOS study roadmap and publishing my notes along the way. Here's the plan and what you can expect.